Search found 2 matches

by pm5hacker
July 18th, 2021, 7:42 pm
Forum: Bug Reports
Topic: PM5 bluetooth with heart rate: Loosing connection
Replies: 2
Views: 3330

Re: PM5 bluetooth with heart rate: Loosing connection

You didn't say how you were "reading" the characteristic. Bluetooth is so slow that issuing a "characteristic read" and waiting for a response may well not work consistently. All of the interesting values (including heartrate) are broadcast (Bluetooth calls it "notify") and all can be turned on duri...
by pm5hacker
October 17th, 2020, 1:23 pm
Forum: Bug Reports
Topic: Strange 09 inserted in csafe
Replies: 3
Views: 2551

Re: Strange 09 inserted in csafe

Here's the deal. The PM expects an HID format request and provides an HID format response. You show no sign of sending this format - the "09" is a report ID, and controls the allowed USB frame length. "09" is 0x80 + 0x01. The 0x80 indicates an error, and the 0x01 says that the PM is expecting a 20 b...